Re: AHCI driver progress report - hot-swap PM and parallel probe!

["Justin C. Sherrill" <justin@xxxxxxxxxxxxxxxxxx>]

On Sat, June 13, 2009 8:13 pm, Matthew Dillon wrote:

>     How about a kernel environment variable that can be set from the
>     bootloader to disable the driver?
>
>     Then a person can upgrade and reboot and if they made a mistake
>     its a simple 'set' command at the loader prompt and they're up and
>     running again.

That'll work - perhaps default to the non-AHCI behavior for 2.4, and then
change at 2.6?  My pet issue here is having an upgrade scramble - or
appear to scramble - someone's machine.  Our upgrades have been remarkably
painless, and I'd hate to lose that pattern.